ABB REM 54 Series, Technical Reference Manual

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82
1MRS750915-MUM
Machine Terminal
Technical Reference Manual, General
REM 54_
Max lead resistance
(three-wire measurement) 200 Ω per lead
Accuracy
±
0.5% of full scale
± 1.0% of full scale for 10 Ω Copper RTD
Isolation 2 kV (inputs to outputs and inputs to protective earth
Sampling frequency 5 Hz
Response time ≤ Filter time + 30 ms (430 ms...5.03 s)
RTD / Resistance sensing
current max 4.2 mA RMS
6.2 mA RMS for 10
Ω Copper
Current input impedance 274 Ω ± 0.1%
Table 5.2.1-5 Signal outputs
Max system voltage 250 V AC/DC
Continuous carry 5 A
Make and carry for 0.5 s 10 A
Make and carry for 3 s 8 A
Breaking capacity when control circuit time-
constant L/R <40 ms, at 48/110/220 V DC 1 A/0.25 A/0.15 A
Table 5.2.1-6 Power outputs
Max system voltage 250 V AC/DC
Continuous carry 5 A
Make and carry for 0.5 s 30 A
Make and carry for 3 s 15 A
Breaking capacity when control circuit time
constant L/R <40 ms, at 48/110/220 V DC
a
5 A/3 A/1 A
Minimum contact load 100 mA, 24 V AC/DC (2.4 VA)
TCS (Trip Circuit
Supervision) Control voltage range 20…265 V AC/DC
Current drain through
the supervision circuit approx. 1.5 mA (0.99…1.72 mA)
Minimum voltage
(threshold) over a
contact 20 V AC/DC (15…20 V)
a. two contacts in series
Table 5.2.1-7 Analog outputs
Output range 0...20 mA
Accuracy
±
0.5% of full scale
Max load 600
Ω
Isolation 2 kV (output to output, output to inputs and output to protective earth)
Response time
≤
85 ms
Table 5.2.1-8 Environmental conditions
Specified service temperature range -10…+55 ° C
Transport and storage temperature range -40…+70 ° C
Enclosure class front side, flush-mounted IP 54
rear side, connection terminals IP 20
Dry heat test according to IEC 60068-2-2
Dry cold test according to IEC 60068-2-1
Damp heat test, cyclic according to IEC 60068-2-30,
r.h. = 95%, T = 25
° …55 ° C
Storage temperature tests according to IEC 60068-2-48
Table 5.2.1-4 RTD/analog inputs (Continued)